UL (Underwriters Laboratories), which is committed to consumer safety, drafted a safety standard for LED modules and lighting fixtures in 2005 - UL Subject 8750 draft to standardize LED lighting as a light source for LED lighting production Provide a set of luminaire validation guidelines that can be followed. At present, UL is working closely with ITRI to design an AC LED prototype for the Institute of Industrial and Technological Engineering. The UL Subject 8750 draft is used for safety verification evaluation, and it is recommended to the Institute for the purpose of personal safety such as heat dissipation and brightness. I look forward to assisting in the standardization of this design prototype as soon as possible.
The UL Subject 8750 draft is expected to be released into a formal standard in early 2009. It is expected to become the standard for LED product standardization in the future. It is also an essential safety certification standard for the sale of LED products to North America. UL's LED safety verification service is applicable to LED main products. All kinds of light source products, including lamps, bulbs, drivers, etc., in addition to the existing safety regulations, LED light source lighting products must be verified for the special properties of LED light sources or modules.
Piezoelectric Ceramic are a ferroelectric compound. This means, that the electro-mechanical conversion process for producing a motion is related a kind of self-enhancement process based on an internal reorganization of the material's structure. This self-enhancement process results in the higher piezoelectrical efficiency of PZT when compared to natural materials like quartz.
Piezoelectric ceramic are generally manufactured from PZT (Pb - lead, Zr - zirconium, Ti - titanium). The PZT- formulation can be varied with a variety of dopants allowing for a broad spectrum of material properties optimized for different application profiles.
Yuhai Company is able to manufacture piezoelectric ceramic elements in a wide range of shapes and sizes. piezoelectric discs, piezo rings, piezo plates, and piezo tubes (cylinders) is the main shapes Yuhai Company most frequently manufactures, we also have a great deal of experience manufacturing hemispheres, trapezoids and other customized shapes.
If the listed shapes and sizes was not the elements you are looking for, please contact us for more information. We can work with you to create the correct shape and size for you.Piezoelectric Elements,Piezo Ceramic Disc,Piezoelectric Ceramic Discs,Pzt Element
Zibo Yuhai Electronic Ceramic Co., Ltd. , http://www.yhpiezo.com